Jigging device for bag-filling machines



A. M. BATES JIGGING DEVICE FOR BAG FILLING MACHINES 1922 4 Sheets-Sheet l Filed June 2,

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A, M. BATES JIGGING DEVICE FOR BAG FILLING MACHINES Filed June 2, 1922 4 sheets-sheet s Nov 17, A. M. BATES JIGGIN'G DEVICE FOR BG FILLING MACHINES 4 sheets-sheet 4 Filed June 2, 1922 PATENT OFFICE.

UNITED STATES- ADELTJIER IVI. BATES, OF CHICAGO, ILLINOIS, ASSIGNOR TO BATES VALVE' BAG COM- PANY, 0F CHICAGO, ILLINOIS, A CORPORATION OF WEST VIRGINIA.

JIGGING DEVICE FOR BAG-'FILLING MACHINES.

Application filed June 2, 1922.

T0 all Lo/ont it may Concern.'

Bc it known that I, Anrmrnr. M. Barns, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Jigging Devices for Dag-Filling Machines, of which the following a specification.

This invention relates to a jigging device for bagging machines, and is illustrated more or less diagrammatically in the accompanying drawings wherein:

Figure l is a front elevation with parts omitted and parts in section;

Figure 2 is a section on line 2-2 of Figure l;

Figure 3 is a section on line 3-3 of Figure 2;

Figure l is a section on line f-c of Figure 3;

Figure 5 is a detail of the driving mechanism showing the driving pinion and its mounting with parts in section;

Figure 6 is a section taken on line (3f-6 of Figure 5;

Figure 7 is a plan view on a reduced scale of the mounting of the bearing shown in Figure 5.

Like parts are designated by like characters throughout.

The bagging machine is mounted upon a frame provided with end members A, A which are united at their bottoms by a pair of longitudinal members A', A. Across the top of the machine is a multiple hopper B adapted to receive material to be packed and to empty it into a plurality of feeding means which are located beneath the chest B. These feeding means are not here shown in detail and will not be described in detail as they form no part of the present invention. The-y are shown in Figure 2 diagrammatically wherein B2 is an impeller casing to which material is fed from the hopper B through the chest B. It is provided with a shut-off valve B3 operated by the handle B4. Extending from the impeller casing B2 is a feed nozzle B5 which is adapted to be inserted into a bag BG and through which material is fed into the bag.

The feeding means include impellers whereby the charge to be fed into` the bag is fed in under power. C is a pulley adapted to be driven by any suitable source of bearings Serial No. 565,352.

power and fixed upon a shaft C which is carried at one end in a bearing G2 mounted upon a supporting arm C3 which is connected to one of the end members A. The shaft C is suitably supported upon other throughout its length. Atits other end it is provided with a pair' of belt pulleys D, D. From the pulley D al belt .D2 furnishes power to a pulley D3 which is fixed upon a driving shaft DL. This shaft extends across the back of the machine and carries at its other end a pinion D5 which is in mesh with the. gear D6, which as here shown is covered by a protecting casing DT. The gear D6 is fixed upon a power shaft DS which lies in thel same horizontal plane as the shaft Dt. From this shaft DS some of the impellers of the feeding mechanism are driven.

Extending from the belt pulley D is a belt E which drives a pulley E on a shaft E2. Eccentrically connected to this shaft are a plurality of jigging rods E3, each of which carries at its outer end a jigging foot E4 which is mounted upon a rocker bar E5 which is pivoted at its lower end as at EG. By means of the rotation of the pulley E and the consequent movement of the rods E8 the jigging feet E4 jig and pound against the bags B6 and thus serve to assist in settling the material as it is fed into them. The pivot E7 connecting the rocker bar EG to the jigging foot E4 is preferably above the bag contacting surface of the foot, as sho-wn. The longer rocker bar gives the foot a more nearly straight line motion than would a shorter bar pivoted to the foot cfipposite to or below the bag contacting suracc.

Pivoted upon the shaft D4 is an arm F. This arm carries at its outer end a weighted roller F which is adapted to bear upon the belt D2 to assist in tightening it. Sometimes when the machine is operating under full load there is a tendency of the belt to slip, and the operator will seize the handle F2 at the end of the arm F and depress it to tighten 'the belt. Upon his releasing the handle there is a tendency of the arm to be thrown violently upward, sometimes resulting in injury to the operator or to the machine. To prevent this a lateral extension F3 is provided on the chest B and a pivotal spring held member Ft is mounted in the handle F2. This member is normally held in position shown in full lines in Figures l and 3 by means ot thel helical spring lV. lillhen the parts are in this position, it the arm F is thrown upward, its movement is limited and it cannot damage either' the operator or the machine. lfhen it is necessary to raise the arm above this limited position the part F1 is depressed against the spring F5 and it then clears the extension F3 and the arm may be moved upward.

TEigures 5, G, and 7 illustrate in detail the arrangement and mounting ot the pinion The pinion is carried in a bearing G which is mounted upon the bracket (,i which. extends laterally 'from the chest B. rit .its upper end the bracket (lf is provided with ausurliace tlf" which has in it a pair of' slots (i3, G and an enlarged central opening Gt. lllhen the bearing G is mounted on the sur tace G2 it is moied so that the heads G5 of the attaching bolts GG come one ot them into the enlarged opening Gt and the other one entirely outside. of the system ot slots. The bearing is then moved laterally so that the Shanks ot the bolts come into the slots G3 and the heads are thus in engagement with the lower surface and the nuts are tightened and the bf-raring` held in position. rlfhe bag BG to be filled is supported in an fil-trame lil'. Each is pivotally mounted at its upper end upon a bar H. This bar is itself pivotally mounted at H2. rlhe details l ot this second pivotal mount-ing will not here be described as they form no part of the present invention. it their lower ends the sides of the ,fi-trame H are forked as at lli) and rest upon the ends oii a pair of scale beams, the details of which will not be fully described as they term no part of the present invention. Connected to the main .ft-'frame side members ll are a` pair of downward ei;- tensions .blt which are oined together at the bottom preferably by a plate H5. Mounted for movement within the ffl-.trame and pivoted adjacent the bottom of.E the members H" is a bag holding cradle l'. rl`his cradle is provided with an adjustable bottom l whereby adjustment may be made tor vary ing sizes of bags or packages. At the top of the cradle l is mounted a hook l2 which is adapted to enga-ge with a hook lg mounted upon the chestl. rllhe hook member la is provided with a stop l and an adjusting screw l5. llfonnt-ed at the bottom oi" the multiple hopper B is a laterally extending arm .G to which is pivoted a lever ll which carries a handle f8. The lever i7 adjacent the handle la is connected to the hook l2 by means of the link lo.

Mounted between the end members A, It and beneath the hopper and chest are a plurality ot weighing mechanisms, one for each ot the Adrames, .vhereby each bag or packaee is separately weighec as it is filled. A

description ot one of these mechanisms will serve as a description oit all. The scale beam is in reality a substantially rectangular frame including a pair of' side members d' joined together at the outer end J and pivoted at the points J2. 'llhe :l-trame H is supported at the end d'3 ot' the scale bar, as dest-,ril ed above. 'llhe scale beam is provided at the end J" with an adjusting and limiting screw it which limits the downward excursion ot that end ot the bar. Mounted centrally ot the weighing` trame is a weight holding bar J upon which a main weight l is mounted. Mounted above one of the side members .l is a rod (ll upon which an adjusting weight JS is movably mounted. The main weight k1l is set for a given weight et package and the weight JS is moved in order to make and keep the adjustment correct.

The use and operation of my invention are as follows:

rllhe machine as shown is intended to fill three bags or packages simultaneously. In the specification only one bag filling arrangement has been described as the others are identical with it. rllhe bags are put in position within the bag holding cradle and the discharge nozzle is introduced into an opening ot the bag, which is preferably of the valve type. wWhen the bag is positioned and the valve of the discharge nozzle opened7 material is discharged from the hopper through the chest into the bag by means oft' the impellers. A s the bag fills, the scale beam is gradually depressed by reason ot the increasing weight ot' the material coming into the bag. As the lowering of the bag continues the valve in the discharge spout is automatically gradually closed by a mechanism which :forms no part et the present invention. l/Vhen the bag has been filled to the predetermined weight, the cradle will have been depressed to the bottom ot its excursion and the discharge valve closed. The handle which controls the cradle is then used and the cradle is tipped and the bag thrown of The jigging mecliaism operates during the filling to and Avibrate the bag so as vto insure packing ot the material. The handle which controls the cradle by means or" which the bag is discharged is pivotal and independent of the cradle, so that the weight of the operators hand as he holds the handle in preparation itor discharging the bag does not come upon the scale and does not therefore aifect the balance of the same nor the discharge ot the material.

Although l have shown an operative device, it will be obvious that many changes in size, shape and relation of parts might be made without departing materially from the spirit of my invention and l wish theretore that my showing be taken as in a sense diagrammatic.

Claims:

l. In a bag filling lnachine, apparatus adapted to suspend and lill a bag, a substantially horizontal rod, ineans to reciprocate the rod, a jig-ging foot attached to one end of the rod in position to contact a bag in iilling position, and a rocker bar mounted upon a fixed pivot beneath the jigger foot and pivoted at its upper end to the jigger foot at' a point above the bag contacting surface of the foot.

2. In a bag illing machine, apparatus adapted to fill material into the upper end of a bag, a weighing device beneath said apparatus and adapted to Weigh a bag While 16 it is being filled, a horizontal rod extending between said apparatus and said device, means to reciprocate the rod, a jigging foot attached to one end of the rod in position to contact a bag in filling position, and a 20 rocker bar pivotally mounted upon the base of the Weighing device and pivoted at its upper end to the jigger foot at a point above the bag contacting surface of the foot.

Signed at Chicago, county of Cook and 25 State of Illinois, this 24th day of May 1922.

ADELMER M. BATES. 

